Ugh, I hate all those posts and opinion pieces condemning little bits of online political involvement as 'slactivism'
Sure, sharing a video about something awful happeining, or signing an e-petition, or doing something like this ice bucket challenge might not change the world and there's almsot certainly more which can be done but at least it's something.
There are too many things which need action in the world for us to be dedicating ourselves to all of them, but when we see a problem, most people's natural reaction is to want to do something.
And raising a little bit of money or awareness is better than sitting on a proverbial high horse lecturing people that they're not doing enough.